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我有一个应用程序,当前允许用户上传大量数据到Web服务。问题是这些文件需要一些时间才能通过网络上传,所以我想让用户先压缩文件然后上传。在java中解压Spring MultipartFile
@RequestMapping(value = "upload", method = RequestMethod.POST)
@ResponseBody
public ResponseEntity<?> uploadObjects(HttpServletRequest request,
@RequestParam("file") MultipartFile file) {
//Do stuff with it
}
我目前可以解压MultipartFile到Java IO文件,但所有现有的逻辑只能成MultipartFile工作,将需要一些(可能很多)返工。
private File unzip(MultipartFile file) throws IOException {
byte[] buffer = new byte[1024];
int bufferSize = 1024;
File tempFile = null;
ZipInputStream zis = new ZipInputStream(file.getInputStream());
ZipEntry entry;
while ((entry = zis.getNextEntry()) != null) {
tempFile = File.createTempFile(entry.getName(), "tmp");
tempFile.deleteOnExit();
FileOutputStream fos = new FileOutputStream(tempFile);
BufferedOutputStream bos = new BufferedOutputStream(fos, bufferSize);
int count;
while ((count = zis.read(buffer, 0, bufferSize)) != -1) {
bos.write(buffer, 0, count);
}
bos.flush();
bos.close();
}
zis.close();
return tempFile;
}
有没有办法将MultipartFile解压缩回MultipartFile?或者将文件转换成MultipartFile?
[转换文件到MultiPartFile]的可能的复制(http://stackoverflow.com/questions/16648549/converting-file-到multipartfile) – MGorgon